通过测量一束头发上较重的氢和氧同位素的比例，科学家可以构建一个地理时间轴。
By measuring the proportion of heavier hydrogen and oxygen isotopes along a strand of hair, scientists can construct a geographic timeline.
随着大量的水通过蒸发被抽离，并以雪的形式沉淀形成冰川冰，海洋中氧同位素的比率就发生了变化。
The oxygen isotope ratio of the ocean changes as a great deal of water is withdrawn from it by evaporation and is precipitated as snow to form glacial ice.
因此，更多的重氧同位素留在了海洋里，并被海洋有机物吸收。
Thus, more of the heavy isotope is left behind in the ocean and absorbed by marine organisms.
氢、氧同位素组成显示变质水特征。
From the isotopic constitutions of hydrogen and oxygen a metamorphic water feature is shown.
碳、氧同位素组成指示碳来源于壳幔混合。
Composition of carbon and oxygen isotope indicates that origin of carbon comes from mixture of the crust and mantle.
硅质岩中硅、氧同位素也显示其热水成因之特点。
The Silicon and Oxygen isotopes also demonstrate the characteristics of hydrothermal origin.
中国南部石笋氧同位素记录记载了重要的气候变化信息。
Oxygen isotope records of stalagmites from Southern China provide very important climatic information.
报道了浙江7个地开石粘土矿床的氢和氧同位素分析数据。
The data of hydrogen and oxygen isotopic analyses are reported in 7 dickite clay deposits of Zhejiang Provine.
碳同位素显示的格局，但它是较为困难的解释比氧同位素模式。
Carbon isotopes show a pattern, but it is somewhat more difficult to interpret than the oxygen isotope pattern.
本文推导出氧质谱峰高之间的关系和计算氧同位素丰度的公式。
In this paper, formulas for relationship among oxygen mass spectra peak heights and for calculating oxygen isotope abundance are drived.
除了比对氧同位素的季度变化之外，渡边刚及其同事们还比对了年度的变化。
Besides finding season-to-season variations in oxygen isotopes, Watanabe and his colleagues discerned year-to-year variations.
氧同位素的变化可能是结晶作用、去气作用或地壳物质混染所至。
Oxygen isotope variation maybe results from crystallization, degasification or hybridization of crust materials.
本论文对来自四川龙门山泥盆纪的腕足化石进行碳、氧同位素分析。
This paper analysed the carbon and oxygen isotope composition of brachiopods fossils from the Devonian Period in Sichuan Province.
这整体上与深海氧同位素比较接近，与黄土剖面一些指标差异较大。
This generally agrees with deep sea oxygen isotope and differs by large from some climatic indexes of loess profiles.
实验分析的数据首次表明：铀氧化物中的氧同位素主要是富轻氧的。
Data from the analytical results show that the oxygen isotopes in analysed uranium oxides is mostly light oxygen.
氧同位素组成是一个非常有效的示踪硫酸盐的起源和形成环境的工具。
The composition of oxygen isotope is a good tool to trace the origin and formation environment of sulfate.
研究人员说锆石的高标准重氧同位素暗示了它形成之后靠地表水来冷却。
Researchers said the zircon's high level of heavy oxygen isotopes suggest it was cooled by surface water after it formed.
他们研究了珊瑚碳酸盐骨骼中留存的氧同位素比例随珊瑚的生长逐月发生变化的情况。
They looked at how the ratios of oxygen isotopes locked in the corals' carbonate skeletons varied month by month as the colonies grew.
测定了某些地质样品的碳、氧同位素组成，并对其在地质上的应用作了解释。
Carbon and oxygen isotope compositions of some geological samples have been measured and its application to geology has been interpreted in this paper.
而且以MAT - CH_5质谱计测量氧同位素比时的本底校正作为例子。
Furthermore, the background correction during the oxygen isotope ratio measurement with MAT-CH5 mass spectrometer was chosen as an example.
湖泊自生碳酸盐碳氧同位素变化是反映内陆湖泊水环境与气候环境的重要指标。
Authigenic carbonate oxygen and carbon isotope evidence in lake sediment is an important proxy to reflect lake environment and climatic change.
并将碳、氧同位素这一环境敏感指标推广到了高矿化度的“准”咸湖的环境中。
And we also can extend c, o isotopes, this sensitive environmental information indicator to nearly saline lake conditions of high degree mineralization.
深海氧同位素第3阶段是末次冰期中的一段特殊时期，与全新世存在一定的相似性。
The MIS 3 is a special period of the last glacial period and similar to the environment of Holocene on some ways.
今年3月，通过对冰岛一带贝壳的研究发现，其硬壳氧同位素的水平会随水温的变化而产生差异。
A study this March of clamshells taken from Iceland found that the levels of oxygen isotopes in the shell layers varied depending on the temperature of the water in which they formed.
对我国东部不同地层区一些代表性的寒武系—奥陶系界线层位开展了碳、氧同位素研究。
Carbon and Oxygen isotopic study of some representative Cambrian Ordovician boundary strata of various stratigraphic areas in East China has done.
环境记录显示，末次冰期间冰阶(即氧同位素3阶段)期间该区呈现出极端冷湿的气候环境。
Environmental records show that in that area the environment was extremely cold and wet during the interstage of the last glaciation (deep sea oxygen isotope stage 3).
利用增量方法和同位素交换技术，对角闪石族矿物的氧同位素分馏进行了理论计算和实验测定。
Oxygen isotope fractionation in amphiboles was determined by theoretical calculation using the increment method and by experimental measurement using isotope exchange technique.
海相碳酸盐岩中的碳、氧同位素组成及其演化特征分析是古气候、古海洋环境研究的一种常用手段。
The carbon and oxygen isotope composition and its evolution of Marine carbonate rock is commonly means to the study of the ancient climate and ancient Marine environment.
通过对沉积岩中沉积物的粘土矿物、气候指数、氧同位素测温等研究，获得关于气候干湿冷暖的信息。
By the research of the clay mineral and climatic index of the sediment in the sedimentary rock and its temperature measured by oxygen isotope, we can get different climate information.
根据含矿层序中的碳、氧同位素组成和稀土元素(REE)模式，认为大宝山矿床是海底热事件的结果。
Based on the carbon and oxygen isotopic composition and rare earth element (REE) patterns, the origin of the Dabaoshan deposit is considered to be related to the sea-floor thermal events.
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